Polymerization-induced phase-separating compositions for acrylate-based networks
US11001664B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2017 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Jul 23, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L75/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Embodiments described herein are directed to polymerization-induced phase-separating (PIPS) compositions for enhancement of impact resistance and rheological properties in photocurable resins for 3D printing, such as for inks, coatings and adhesives. Embodiments described herein are advantageous with respect to properties such as impact resistance, shear adhesion and cohesive strength. The PIPS compositions may include components X, Y and Z, wherein X includes an acrylic based monomer; Y includes a copolymer of block A and block B; and Z includes a multifunctional cross-linker. Methods of using the PIPS compositions are also described. Also described are methods of screening potential acrylic based monomeric or oligomeric additives that yield improved impact resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.